We divide 23700386 by 423
The aim is to understand the frequency of 423 in 23700386.

On to step 1:
2 divided by 423 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (3) from the dividend, add it to 2, then carry on: 23 / 423

Step 2:
23 divided by 423 is 0 with a remainder of 23.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 23, we get 23.
Bring next digit (7) of the dividend behind the 23 and repeat the process: 237 / 423

Advancing to step 3:
The number 423 fits into 237 0 times, leaving a remainder of 237.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 237, we end up with 237.
Take the next digit (0) from the dividend and append it to 237, then repeat: 2370 / 423

On to step 4:
When dividing 2370 by 423, we get 5 with a remainder of 255.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we take 2115 away from 2370, we end up with 255.
Fetch the next digit (0) from the dividend, attach it to 255 and continue: 2550 / 423

Moving on to step 5:
When dividing 2550 by 423, we get 6 with a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 56.0
Deduct 2538 from 2550 and we're left with 12.
Fetch the next digit (3) from the dividend, attach it to 12 and continue: 123 / 423

Going ahead to step 6:
If we divide 123 by 423, we get 0 and a remainder of 123.
Use 0 as the next digit of our solution. 
Result so far: 560.0
Subtracting 0 from 123 leaves us with 123.
Fetch the next digit (8) from the dividend, attach it to 123 and continue: 1238 / 423

On to step 7:
When dividing 1238 by 423, we get 2 with a remainder of 392.
Use 2 as the next digit of our solution. 
Result so far: 5602.0
Deduct 846 from 1238 and we're left with 392.
Take the next digit (6) from the dividend and append it to 392, then repeat: 3926 / 423

Moving on to step 8:
423 can be fit into 3926 9 times, resulting in a remainder of 119.
Record the quotient 9 as the next digit in the result. 
Result so far: 56029.0
Subtract 3807 from 3926 to get 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Advancing to step 9:
1190 divided by 423 is 2 with a remainder of 344.
Put 2 as the next digit of the answer. 
Result so far: 56029.2
Subtract 846 from 1190 to get 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Going ahead to step 10:
If we divide 3440 by 423, we get 8 and a remainder of 56.
The next digit of our result is 8. 
Result so far: 56029.28
If we take 3384 away from 3440, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 11:
423 goes into 560 1 times with a remainder of 137.
The next digit of our result is 1. 
Result so far: 56029.281
If we take 423 away from 560, we end up with 137.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

Let's proceed to step 12:
If we divide 1370 by 423, we get 3 and a remainder of 101.
The next digit of our result is 3. 
Result so far: 56029.2813
If we take 1269 away from 1370, we end up with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Step 13:
423 goes into 1010 2 times with a remainder of 164.
Put 2 as the next digit of the answer. 
Result so far: 56029.28132
If we take 846 away from 1010, we end up with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Moving on to step 14:
The number 423 fits into 1640 3 times, leaving a remainder of 371.
The next digit of our result is 3. 
Result so far: 56029.281323
Subtracting 1269 from 1640 leaves us with 371.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3710, and continue the process.

Going ahead to step 15:
The number 423 fits into 3710 8 times, leaving a remainder of 326.
Use 8 as the next digit of our solution. 
Result so far: 56029.2813238
Subtract 3384 from 3710 to get 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Advancing to step 16:
423 can be fit into 3260 7 times, resulting in a remainder of 299.
The number 7 becomes the next digit in our result. 
Result so far: 56029.28132387
If we take 2961 away from 3260, we end up with 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

The final result is 56029.28132387 with a remainder of 2.99e-07.